ebrary, Inc, & Foster, J. E. (2013). A unified approach to measuring poverty and inequality: Theory and practice. World Bank.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)ebrary, Inc, و James E. Foster. A Unified Approach to Measuring Poverty and Inequality: Theory and Practice. Washington, D.C.: World Bank, 2013.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)ebrary, Inc, و James E. Foster. A Unified Approach to Measuring Poverty and Inequality: Theory and Practice. World Bank, 2013.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.